Regulator for oil-gas burners.



C. E. CRANE-- "REGULATOR FOR OH. GAS BUFWERS.

APPLICATION FILED APR. 30. 1917.

1 ,@53 5? & Patmtefi Jan. 15, 1918.

; snares Parana. oFF E CHARLES E. CRANE, 0F SEATTLE, WASHINGTON.

REGULATOR FOB OIL-GAS BURNERS.

Specification of Letters Patent. Patented Jain. 1L5, 191%.

m i licatlon filed April 30, 1917. Serial No. 165,505.

burners which convert oil into gas and burn.

the gas, and. particularly to such oil-gas burners as are adapted to beused in stoves and ranges for cooking purposes, and its object is tocontrol the admlssion to the mixing chamber of oil-vapor and air.

To this end my invention consists 1n the construction and combination ofparts forming a regulator for oil-gas burners here1nafter more fullydescribed and particularly stated in the claims, reference being had tothe accompanying drawings in wh1ch-- Figure 1 represents in verticalsection,

partly in side elevation, a regulator for oilgas burners according to myinvention.

Fig. 11 is an under side View of the regulator attaching web. v

Numeral 3 represents the base pan, 4 the mixing chamber comprising afloor 5, an outer wall 6, an inner wall or intake tube 7, a dome-shapedcap 8, and a perforated burner 9. The mixing chamber is mounted on legs10, standing in the pan 3. A retort 11, surrounds the mixing chamber,resting on brackets 12, thereof and is connected at one end with asource of oil supply, and at the other end 13, it delivers into the tip14:. A nozzle 15, with a very fine outlet 16, delivers a jet 17, of oilspray into theintake tube 7. A cleaner for the outlet 16, is connectedin a usual manner to be operated by the wire lever 18. A ate tube 19, isfitted to telescope with the intake tube 7, and is connected with aregulating screw 20, by a web 21, that is secured to the gate tube. Thescrew 20, has a neck turning freely in the web 21, and a head 22, forlifting engagement therewith.

A binding nut 23, may be used to hold the screw fixed at any desiredpoint. Asapply of oil is usually kept in a reservolr or tank at a safedistance from the stove and is carried to the retort 11, by a very smallpipe which is provided with a throttle valve whereby the supply of oilmay be regulated according to the amount ofheat desired, and the oil isdelivered under pressure by forcing air into the tank. In operation, theretort 11, is to be heated to start it to vaporizing the oil in it byburning alcohol or other combustible fluid in the base-pan 3. Theexpansion of the vapor drives it as a jet 17, up through the intake tube7 drawing with it. air into the mixing chamber 4. There the current isdeflected downward by contact with the internally concave cap 8, to

pass under the edge 24, then over the outer.

wall 6, to the annular space 25, from which it isdischarged through manyperforations 26, inthe burner 9, and burned in a continuous blaze afterbeing ignited. Dark blue color of the blaze indicates the greatest heatin burning oil-gas, and this can be produced by mixing air and oil vaporin due proportions, which may be done by operating the gate 19, by meansof the screw 20. If that screw be turned upward it will draw the 1 gate19, nearer and nearer to the dome 8 thereby gradually shutting olf theinlet of air and causing the flame to turn greenish and finally yellow,giving of]? dense smoke. If the screw be turned downward from the blueburning point the blaze will gradually fade in color and finally beblown out by the admission of too much air. Whether little or much oilis being admitted to produce little or great heat, the blue color of theflame should be always maintained by properly fixing the gate by theadjusting screw as described. The head 22, of the screw is shaped as adownward pointed cone, and the dome 8 is shaped as a curved fillet 27,depending around the screw 20, to give the incoming air and vapor anoutward flare so it may follow the downward turn of the dome 8, in evencurves insuring a smooth steady delivery of gas to the flame. By using along slianked screwdriver the screw 20, may be adjusted while the stoveis burning, without discomfort to the hand of the operator, thusenabling this heater to be regulated to the greatest nicety of economy.

I claim:

1. In a regulator for oil-gas burners, a mixing chamber comprising anouter wall, a central-intake tube, a perforated burner around the outerwall and a dome-shaped cap-resting on the said burner; a tubular gatetelescoping with the intake tube; a screw passing down through the capand engaging the said gate, and means for spraying oil up into theintake tube.

2. In a regulator for oil-gas burners, a

mixing chamber having an intake tribe; a tubular gate telescoping withthe intake tube; a dome-shaped e p; a screw depending from the cap anengaging the said gate, the lower end of the screw being pointed, and acurved fillet of the cap depending around the said screw.

3. In a regulator for oil-gas burners, a mixing chamber comprising anintake tube and a dome-shaped cap; a tubular gate telescoping with theintake tube, and communicating means passing through the said cap toraise and lower the gate.

4. A regulator for oil-gas burners having a mixing chamber; an intaketube; a tubular 15 gate telescoping with the intake tube and risingabove the top thereof; a dome-shaped cap over the gate and means formoving the gate toward and away from the cap to decrease or to increasethe inlet for air and 20 oil-vapor.

In testimon ,whereof I affix my signature in presence of two witnesses.

CHARLES E. CRANE.

Witnesses? JAMES A. HAIGHT, Jr., JAMES A. HAIGHT.

Copies this patent may be obtained for five cents each, by add ressingthe Commissioner of racemes, Washington, D. e.

